Posted on 11/09/2004 9:51:00 AM PST by 4kevin
Seven stars orbiting the region identify the invisible object. A second black hole lurks at the centre of our Galaxy, according to astronomers who have watched a cluster of stars spinning around it. Just three years ago, astronomers confirmed that the Milky Way revolves around a supermassive black hole, called Sagittarius A*, which is about 2.6 million times more massive than the Sun. But now a much smaller black hole, just 1,300 times our Sun's mass, has been found orbiting about three light years away from its supermassive cousin. Jean-Pierre Maillard, an astronomer from the Institute of Astrophysics in Paris, France, led a team that looked at a very bright area of the galactic core called IRS 13, previously thought by astronomers to be a single object.
(Excerpt) Read more at nature.com ...
Movies from the Edge of Spacetime
Head-on Collision of Two Non-Rotating Black Holes
Coming Through The Rye
by Robert Burns
Coming thro' the rye, poor body,
Coming thro' the rye,
She draiglet a' her petticoatie
Coming thro' the rye.
O, Jenny's a' wat, poor body;
Jenny's seldom dry;
She draiglet a' her petticoatie
Coming thro' the rye.
Gin a body meet a body
Coming thro' the rye,
Gin a body kiss a body -
Need a body cry?
Gin a body meet a body
Coming thro' the glen,
Gin a body kiss a body -
Need the warld ken?
We're doomed!
Michael Moore is building a spaceship to go investigate it. If no one tells him it's not a black DONUT hole we'll be rid of him, so keep it quiet...
BTTT
So for the sake of conjecture, what exactly happens when a black hole swallows another black hole?
'AKA "Whoopi Goldberg".'
No, no, Whoopi is 2.6 million times more dense than the sun.
I think he's right, there is something about this, that's that's so black, it's like; "How much more black could this be?" and the answer is: "None, none... more black."
IRS 13 has more than one big black hole?
"What happens when the smaller black hole gets drawn into the larger black hole?..........."
The same thing that happens when you put a bag of holding in a portable hole.
(Yes, yes. I'm a geek.)
Certainly sounds geek to me......
Another Al Sharpton?
Oh!
Black HOLE, not...
Never mind.
bookmark
Exploring curved space
can be done on almost all
modern computers.
The most amazing
tutorial I know of
is this Logo book
that starts with simple
functions and builds carefully
to 3D wonders.
Great stuff, written for
Logo, but can be used with
all programming tools.
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The Computer as a Medium for Exploring Mathematics |
Turtle Geometry The Computer as a Medium for Exploring Mathematics Harold Abelson and Andrea diSessa Turtle Geometry presents an innovative program of mathematical discovery that demonstrates how the effective use of personal computers can profoundly change the nature of a student's contact with mathematics. Using this book and a few simple computer programs, students can explore the properties of space by following an imaginary turtle across the screen. "A college-level math text for serious mathematicians and fans of recreational mathematics. This book proves that turtle graphics is not just kid stuff."The concept of turtle geometry grew out of the Logo Group at MIT. Directed by Seymour Papert, author of Mindstorms, this group has done extensive work with preschool children, high school students and university undergraduates. Harold Abelson is an associate professor in the Department of Electrical Engineering and Computer Science at MIT. Andrea diSessa is an associate professor in the Graduate School of Education, University of California, Berkeley. Andrea diSessa is Chancellors Professor in the Graduate School of Education at the University of California, Berkeley, and a member of the National Academy of Education. He is the coauthor of Turtle Geometry: The Computer as a Medium for Exploring Mathematics (MIT Press, 1981). |
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